Accession Number : AD0758171

Title :   Low Temperature Electrochemical Systems.

Descriptive Note : Semiannual technical rept. no. 2, 1 Jul-31 Dec 72,

Corporate Author : TYCO LABS INC WALTHAM MASS

Personal Author(s) : Malachesky,Paul A. ; Cahill,Kathleen

Report Date : MAR 1973

Pagination or Media Count : 39

Abstract : Investigations into the low temperature performance of air electrodes for use in zinc-air and other metal-air battery systems have been continued in the areas of electrode structure and electrolyte modifications. The effects of such variables as Teflon content, catalyst loading, and catalyst characteristics have been examined. While variations in Teflon content and electrocatalyst loading have minimal effects, electrocatalyst characteristics and electrode preparation procedures do have appreciable effects on air electrode performance. Electrode structures have been produced which show improved performance over present air electrode types. Carbonate and zincate have deleterious effects on air electrode performance, particularly at low temperatures (-40C). The use of a CsOH electrolyte as a substitute for KOH electrolyte appears to result in better low temperature air electrode operation. (Author)

Descriptors :   (*LOW TEMPERATURE BATTERIES, ZINC), ELECTRODES, AIR, ELECTROCHEMISTRY, RELIABILITY(ELECTRONICS), CATALYSTS, HEAT OF ACTIVATION, PLATINUM, HALOGENATED HYDROCARBONS, SURFACES, ALKALINE BATTERIES

Subject Categories : Electrochemical Energy Storage

Distribution Statement : APPROVED FOR PUBLIC RELEASE